Malicious PDF — malware analysis report

Static analysis result for SHA-256 550d01056c110502…

MALICIOUS

PDF

387.5 KB Created: 2022-02-03 18:20:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 226e2d1137228cc1d7b827f3c356ca5f SHA-1: c45887c32fe1d26a82c725a3e01d19755b22f02e SHA-256: 550d01056c1105027a14d0105b0525ca22234956b128e0c85aae05fcd279b5dc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6485

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://wjcopy.com/upload/files/57914423737.pdf In PDF document text
    • https://inijariku.com/ckfinder/userfiles/files/vitakotonudeduzi.pdfIn PDF document text
    • http://gearcon-eng.com/file_media/file_image/file/9549618114.pdfIn PDF document text
    • https://soccerauquebec.com/userfiles/file/sodoliliperivuvuvo.pdfIn PDF document text
    • https://www.camarabaraodecotegipe.rs.gov.br/admin/kcfinder/upload/files/gaburadeliwitisojefere.pdfIn PDF document text
    • http://jfe.hk/userfiles/kotopeselu.pdfIn PDF document text
    • https://zerling.eu/nico/images/files/potebesunogega.pdfIn PDF document text
    • http://www.cbt-trans.eu/upload/files/2201071585.pdfIn PDF document text
    • http://matsonconstruction.net/userfiles/file/2937213299.pdfIn PDF document text
    • http://radissonhoteltraining.com/userfiles/file/90704918723.pdfIn PDF document text
    • http://koppeika.ru/userfiles/file/80393405132.pdfIn PDF document text
    • http://benetworkingpro.com/ckfinder/userfiles/files/25485206438.pdfIn PDF document text
    • http://www.sname.org.tw/sname/ckfinder/userfiles/files/7436936198.pdfIn PDF document text
    • http://cwsf2013.sfiab.com/data/userfiles/file/weraxuzixu.pdfIn PDF document text
    • https://appchecar.com/ckfinder/userfiles/files/3848721289.pdfIn PDF document text
    • https://lengthening-sldf.com/userfiles/file/dogikudexeganavodew.pdfIn PDF document text
    • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16185396aa45e0---33690412061.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/161b36c28f36ea---lafukonawesaz.pdfIn PDF document text
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/161b2b5347de12---3698227429.pdfIn PDF document text
    • https://sheenabusesandcoaches.com/userfiles/file/55069640949.pdfIn PDF document text
    • http://giadinhmedia.com/uploads/files/vimexomip.pdfIn PDF document text
    • https://zdravka.hlpr.hr/userfiles/file/lobonomawelevubalofexije.pdfIn PDF document text
    • http://qlinairnv.be/userfiles/file/14569905734.pdfIn PDF document text
    • http://biosystech.com/pdsFck/file/nojatakumitozulikowib.pdfIn PDF document text
    • https://e-ceramika.pl/userfiles/file/sovubozori.pdfIn PDF document text
    • https://ikitellirezistans.com/upload/files/mibupujur.pdfIn PDF document text
    • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e6f5c22ccca---zinipubotivukogemi.pdfIn PDF document text
    • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/86eada1dc72c0cc20c854d6003fdf7a2/52129769865.pdfIn PDF document text
    • https://nvsrolko.org/ckfinder/userfiles/files/tuzibupuvoziz.pdfIn PDF document text
    • https://www.jobswolf.com/app/webroot/kcfinder/upload/files/norarikusikinidumu.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160ec989db3540---lipuwafemawobomulil.pdfIn PDF document text
    • http://studiomilano.eu/userfiles/files/70459382742.pdfIn PDF document text
    • https://sheenabusesandcoaches.com/userfiles/file/33734202745.pdfIn PDF document text
    • https://egokituz.org/files/galeria/files/27215435029.pdfIn PDF document text
    • https://mangonebike.com/uploads/file/69868428673.pdfIn PDF document text
    • https://yapluka-services.fr/userfiles/file/13156758159.pdfIn PDF document text
    • https://raljob.com/userfiles/file/jomamuwobu.pdfIn PDF document text
    • https://furedgym.webtarhely.org/webroot/upload/files/91272972799.pdfIn PDF document text
    • http://kbo.pl/ckfinder/userfiles/files/47181265468.pdfIn PDF document text
    • https://namlongadc.com/uploads/news/files/furikafukukisafenafiwuduw.pdfIn PDF document text
    • http://goldsunjsc.com/upload/files/jeboguwakul.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=application+form+for+nsfas+2020PDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0005a215.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005a215.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A215 10732 bytes
SHA-256: 7ee21be70574a89be4f1a49ca77118a53acf0f74b45090c1cc01849f2176d093
font_01_sfnt_off0005bad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAD1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005d1ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D1EC 16760 bytes
SHA-256: bb866c10a264a433110be18218a2826289bb1ce59f4e8ac18fcb0517181648b9